Predicting the Future by checking the Past

This explanation is bit abstract.

For example, suppose if you are a college graduate.

You are applying for working visa now.

However, immigration office asks you about overtime illegal working when you were a student.

In this case, even if there is no problem about working visa, you will have a problem because of your past activity, and in the end, your application might be in fail.

This is what I wanted to say in this video.